Editing Legion of Doom (section)

==Development==
When the ''Challenge of the Superfriends'' season was originally conceived, it was named ''Battle of the Superheroes'' and featured the introduction of [[Captain Marvel (DC Comics)|Captain Marvel]] to the Super Friends. The group that challenged the heroes was to be called the "League of Evil", led by Captain Marvel's nemesis [[Doctor Sivana]]. However, [[Filmation]] was producing ''[[Shazam! (TV series)|Shazam!]]'' and ''[[The New Adventures of Batman]]'' which prevented the use of characters such as [[Mister Atom]], [[King Kull (DC Comics)|King Kull]], Beautia Sivana, [[Joker (character)|Joker]], [[Penguin (character)|Penguin]], [[Mr. Freeze]], and [[Catwoman]]. Early conceptual art drawn by [[Alex Toth]] also included [[Heat Wave (character)|Heat Wave]], [[Poison Ivy (character)|Poison Ivy]], and [[Abra Kadabra (character)|Abra Kadabra]].<ref>{{cite web |url=http://noblemania.blogspot.com/2011/07/super-70s-and-80s-super-friendsdarrell.html |title=Super '70s and '80s: "Super Friends" – Darrell McNeil, animator |author=Nobleman, Marc Tyler |date=29 July 2011 |publisher=Noblemania |access-date=25 October 2011 |archive-date=3 December 2011 |archive-url=https://web.archive.org/web/20111203082310/http://noblemania.blogspot.com/2011/07/super-70s-and-80s-super-friendsdarrell.html |url-status=live}}</ref>